Abstract
Catalytic activity, stability and selectivity of USY zeolite catalyst for alkylation of benzene with 1-dodecene were investigated using a continuous fixed bed high pressure microreactor. It is found that the catalytic activity and stability depend closely on the pretreatment temperature of catalyst and reaction conditions. The best result was obtained at 120 °C and 3.0MPa with 8 molar ratio of benzene to 1-dodecene, and 4 h-1 weight hourly space velocity of reactant over the catalyst with the pretreatment temperature of 500 °C. Under this condition, the reaction conversion was nearly 100% and no deactivation was observed within the employed 50 h of time on stream with the selectivity of 2-phenyldodecene being 22%.
Similar content being viewed by others
References
Cao, Y., Kessas, R., Naccache, C. and Ben Taarit, Y., “Alkylation of Benzene with Dodecene. The Activity and Selectivity of Zeolite Type Catalysts as a Function of the Porous Structure,”Appl. Catal. A: General,184, 231 (1999).
de Almeida, J. L. G., Dufaux, M., Ben Taarit, Y. and Naccache, C., “Effect of Pore Size and Aluminium Content on the Production of Linear Alkylbenzenes over HY, H-ZSM-5 and H-ZSM-12 Zeolites: Alkylation of Benzene with 1-Dodecene,”Appl. Catal. A: General,114, 141 (1994).
Jung, J.-H., Lee, J.-K., Kim, J.K. and Lee, H.K., “p-Selectivity of the Al-MFI Substituted Series in Alkylation of Toluene,”Korean J. Chem. Eng.,17, 461 (2000).
Kocal, J. A., US Patent, 5,136,574 (1993).
Kocal, J.A., Vora, B.V. and Imai, T., “Production of Linear Alkylbenzenes,”Appl. Catal. A: General,221, 295 (2001).
Liang, W., Jin, Y., Yu, Z., Wang, Z. and Han, B., “Alkylation of Benzene with Dodecene over HY Zeolite: Deactivation, Regeneration, and Product Distribution,”Zeolites,17, 297(1996).
Meriaudeau, P., Ben Taarit, Y., Thangaraj, A., Almeida, J. L.G. and Naccache, C.,“Zeolite Based Catalysts for Linear Alkylbenzene Production: Dehydrogenation of Long Chain Alkanes and Benzene Alkylation,”Catal. Today,38, 243 (1997).
Sasaki, Y., Suzuki, T., Takamura, Y., Saji, A. and Saka, H., “Structure Analysis of the Mesopore in Dealuminated Zeolite Y by High Resolution TEM Observation with Slow Scan CCD Camera,”J. Catal.,178(1), 94 (1998).
Sivasanker, S. and Thangaraj, A., “Distribution of Isomers in the Alkylation of Benzene with Long-Chain Olefins over Solid Acid Catalysts,”J. Catal.,138, 386 (1992).
Sugi, Y., “Shape-Selective Alkylation of Biphenyl Catalyzed by H-Mordenites,”Korean J. Chem. Eng.,17, 1 (2000).
Wang, B., Lee, C.W., Cai, T. and Park, S. E., “Benzene Alkylation with 1-Dodecene over H-mordenite Zeolite,”Catal. Lett.,76(1-2), 99 (2001).
Author information
Authors and Affiliations
Corresponding authors
Additional information
This paper is dedicated to Professor Wha Young Lee on the occasion of his retirement from Seoul National University.
On a research leave from Department of Chemical Engineering, Nanjing University of Technology, Nanjing 210009, China.
Rights and permissions
About this article
Cite this article
Yuan, XD., Park, JN., Wang, J. et al. Alkylation of benzene with 1- dodecene over usy zeolite catalyst: Effect of pretreatment and reaction conditions. Korean J. Chem. Eng. 19, 607–610 (2002). https://doi.org/10.1007/BF02699304
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02699304